[ALSA] hda-codec - Prepare unsol workqueue on demand
Modules: HDA Codec driver
Prepare unsol workqueue only when a codec really supports.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 14a6f54..cfd50b5 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -288,6 +288,9 @@
{
struct hda_bus_unsolicited *unsol;
+ if (bus->unsol) /* already initialized */
+ return 0;
+
unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
if (! unsol) {
snd_printk(KERN_ERR "hda_codec: can't allocate unsolicited queue\n");
@@ -373,8 +376,6 @@
init_MUTEX(&bus->cmd_mutex);
INIT_LIST_HEAD(&bus->codec_list);
- init_unsol_queue(bus);
-
if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
snd_hda_bus_free(bus);
return err;
@@ -540,6 +541,9 @@
return err;
}
+ if (codec->patch_ops.unsol_event)
+ init_unsol_queue(bus);
+
snd_hda_codec_proc_new(codec);
sprintf(component, "HDA:%08x", codec->vendor_id);